Oiling device



Sept. 8, 1931. c. c. HANSEN 1,822,092

OILING DEVICE Filed July 29, 1950 as Q H175 ATTORNEY,

Patented Sept. 8, 1931 UNITED STATES PATENT OFFICE CHARLES C. HANSEN, OF EASTON, PENNSYLVANIA, ASSIGNOR TO INGEBSOLL-RAND COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY OILING DEVICE Application filed July 29,

This invention relates to oiling devices and has particular reference to an oiler adapted to be used in conjunction with the pressure fluid supply line of rock drills or like devices.

The objects of the invention are to insure an adequate supply of oil to fluid pressure actuated machines during their entire period of operation notwithstanding the position 1;) which the oiling device may assume and to permit substantially all of the oil supplied to the oiling device to be used before the necessity of refilling arises.

Other objects will be in part obvious and in part pointed out hereinafter.

The single figure of the drawing is a longitudinal section through the preferred form of oiling device.

Referring more particularly to the drawing, the numeral 2 designates the casing of the oiler which, in this instance, is in the form of a tubular member provided at one end with a head 4 and at the other with a head 6. The heads 4 and 6 may be secured to the tubular member 2 in any well known manner which will insure a fluid tight joint. EX- tending longitudinally between-the heads 4 and 6 is a tubular portion 8 which divides the easing into a passageway 10 for pressure fluid and a reservoir 12 for oil. The oil may be admitted to the reservoir 12 by means of the opening 14 in the head 4 and the opening 14 may be normally sealed by a plug 16.

The heads 4 and 6 are preferably provided with threaded openings 18 and 20 which are adapted to engage sections 22 of a hose through which is conveyed pressure fluid from a suitable source (not shown) to the ma- 4) chine which is intended to be actuated there- Means for filtering the oil admitted into the reservoir 12 through the opening 14 is provided by the insertion of a screen 24 which may be supported in the reservoir 12 by any suitable means and is in this instance supported between a pair of annular members 26 engaging the casing 2 and the tubular member 1 In accordance with this invention, means are provided to insure a supply of oil to the 1930. Serial No. 471,518.

machine regardless of the position of the oiler and to this end the head 6 is perforated at 28 for the reception of a relatively small tube 30 projecting into the reservoir 12 with its end in the form of a ball 32. Closely will be seen. that the tubular socket member 34 will move on the ball 32 when the oiler is shifted from place to place and that the weight 38 will position the tubular socket member 34 with its end normally adjacent the wall of the casing 2 or in the lowest position.

The head 6 is also provided with a transverse bore 40 with which the perforation 28 communicates and in this transverse bore 40 and projecting therefrom into the passageway 10 is a plug 42. Encircling the plug 42 opposite the perforation 28 is a groove 44 having a port 46 communicating therewith. The port 46 in the plug 42 communicates with a passage 48 extending axially along the plug 42 to a point adjacent the port 46 and having preferably a conical shaped recess 50 at the projecting end of the plug.

It will be apparent from this arrangement that oil from the reservoir 12 may flow through the tubular socket member 34 and emerge through the conical recess 50 in the plug 42. To control this flow of oil from the recess 50 there is provided a needle valve 52 threadedly engaging the head 6 and having one end normally extending into the recess 50 of the plug 42 and thus forming an outlet of variable size. To adjust the needle valve 52 there is provided a slot 54 extend ing into the threaded end and into which a screw driver or other suitable tool may he inserted. lVhen the needle valve 52 is adj usted in position, it may be locked by means of the nut 56 which is inclosed in a recess 58 in the head 6.

In the normal position of the oiler, the fillor plug 16 will be at the top as shown in the drawing and pressure fluid flowing along the passage and pulsating due to the admission and cut oil of pressure fluid in the tool will cause oil to be drawn up through the socket member 34 into the plug 42 to emerge through the recess 50 therein. It will be noted that the projecting end of the plug 42 having the recess 50 is positioned adjacent the iris of the tubular member 8 and the oil emerging therefrom will therefore be the center of the current flo 'ing through the passageway l0, and will not be precipitated against the walls of the hoseline.

During the time that the oil is being withdrawn past the needle valve 52, the air space w 'u the reservoir 12 would ordinarily increase. Means are provided however, to insure a constant supply of air to the reservoir and to this end a conduit 60 is provided in t e tubular member 8 at the-end adj acent the till-er plug 16. il -hen the oiler mm the posit-ion described with the tiller plug at the top, pressure fluid will flow through the conduit 60 and maintain a pressure in the reservoir 12 to compensate for the increased air space. 7

As previously stated, the oiler will function equallvwell in any position and should it be placed in a vertical position with the filler plug 16 at the top, the socket member 34 may drop to the position shown by the dotted line in the drawing. Due to this movement of the socket member 34 the hole in the ball 32 will be covered more or less and the flow of oil therethrough to the tube 30 will be restricted. To assure a constant supply of oil, however, in this-position, an aperture 62 is provided in the side of the ball 32 so that oil from the reservoir 12 may pass into the tube 30 without passing through the socket member 34 and thus the quantity reaching the plug '42 will not be unduly diminished when the socket member 34 moves on the ball 32.

In another position 0t the oiler, it may lie in a horizontal position, with the filler plug 16 downwardly and the tubular socket member 34 will take up the position shown by the dotted lines in the drawing. This position of the socket member will again leave the aperture 62 in the ball 32 free to admit oil to-the plug 42 should sufiicient oil'be contained within the reservoir 12 to flow through this aperture 62 and the socket member If, however, the oil level drops'below the weight 38 of the socket member 34, pressure fluid will flow through the aperture 62 and the socket member 34 and oil will pass through the conduit 60 into the passageway 10.

In another position of the oiler, it may again be positioned vertically but with the filler plug 18 downwardly. The weight 38 on the socket member34 will'cause this memher to lie substantially upright and if sutficient oil is contained within the reservoir to cover this member, the pulsations of the pressure fluid in the passageway 10 will cause the oil to be drawn past the needle valve 52. When, however, the oil drops beyond the socket member 34, pressure fluid will pass through this member and the oil will flow through the conduit 60 into the passageway 10.

As hereinbetore stated, the needle valve 52 is adjustable with respect to the recess the plug 42. Therefore, Whenever it is desired to increase the flow of oil past the needle valve or when oil of high viscosity is belng used, the needle valve 52 may be unscrewed upon loosening the lock nut 56 to increase the area of the opening at the conical recess 50. (in the other hand, when oil of low viscosity is being supplied to the tool, the needle valve 52 may be adjusted to decrease the area at the recess 50 to reduce the volume of oil delivered to the tool.

From the foregoing, it will be seen that an adequate supply of oil may be supplied to the tool in any position of the oiler and that due to the combination of the ball and socket supply means and the conduit 60 substantially all of the "oil supplied at one Killing may be used before the need t er replenishing the oiler arises.

I claim:

1. An air line oiler comprising -'a casing having a passage for pressure fluid and a reservoir for oil with communicating means therehetween, said communicating means being adapted to pass pressure fluid from the passage to the reservoir in one position of the oiler :and to pass oil from the reservoir to the passage in another position lthereot, closure means at each end of the reservoir, a member extending from the closure means at one end of the reservoir into the passage and having a passageway therein, 'a n adjusta'ble member in said closure means adapted to control the passageway, and means supported by the said closure means extending from the passageway into the reservoir to convey oil 'the're-f-ron'i to the passage the casing while the communicating means is passing air and to convey air to the reservoir from the passage while the communicating means is passing oil, said means being adapted to oscillate in the reservoir from "one position to another 'upon movement of the oiler to various positions.

2. An air line oiler comprising a casing having a passage for pressure fluid and a reservoir for oil, and a jointed member comprising a tubular ball portion having atransverse aperture and a socket portion extending 'into'the reservoir to convey oil therefrom to the passage in the casing, said -'s'o'oke't portion being freely movable around the ba ll portion from one position to another upon in oveme n't 'of the 'oiler to various positions and uncovering the transverse aperture in the ball portion to pass oil therethrough when movement of the socket portion prevents the oil from passing through both the ball and socket portions.

3. An air line oiler comprising a casing having a passage for pressure fluid and a reservoir for oil with communicating means therebetween, said communicating means being adapted to pass pressure fluid from the passage to the reservoir in one position of the oiler and to pass oil from the reservoir to the passage in another position thereof, closure means at each end of the reservoir, a member extending from the closure means at one end of the reservoir having a passageway therein, an adjustable member in the said closure means adapted to control the passageway, and a jointed member comprising a tubular ball portion having a transverse aperture and a socket portion extending into the reservoir to convey oil therefrom to the passage in the casing, said socket portion being freely movable around the ball portion from one position to another upon movement of the oiler to various positions and uncovering the transverse aperture in the ball portions to pass oil therethrough when movement of the socket portion prevents the oil from passing through both the ball and socket portions.

In testimony whereof I have signed this specification.

CHARLES C. HANSEN. 

